Made from the finest 100% mulberry silk, - natural charmeuse silk to ensure a healthy and restful sleep, the standard/queen size silk 100% Silk Facial Beauty Pillowcase is recommended by dermatologists to minimize wrinkles. With an envelope closure, the pillowcase is hypoallergenic, natural and healthy, super smooth and eliminates bed hair. All Ellesilk bedding has a thread count of over 400 per square inch and a momme weight of 19. It is machine washable. Pamper yourself with our silk product. .